/*
 * Copyright (c) 2012 Robert Burrell Donkin robertburrelldonkin.name
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software 
 * and associated documentation files (the "Software"), to deal in the Software without restriction, 
 * including without limitation the rights to use, copy, modify, merge, publish, distribute, 
 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software 
 * is furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all copies or 
 * substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING 
 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 * 
 */
package sekhmet.reader;

public class TranscriptBuilder {
	
	private static final int INITIAL_BUFFER_CAPACITY = 1024;
	private final StringBuilder builder;
	
	public TranscriptBuilder() {
		builder = new StringBuilder(INITIAL_BUFFER_CAPACITY);
	}

	public TranscriptBuilder meta(final String name, final String value) {
		comment(name + ": " + value);
		return this;
	}
	
	public TranscriptBuilder comment(final String comment) {
		builderComment().append(' ').append(comment);
		builderEol();
		return this;
	}

	private StringBuilder builderComment() {
		return builder.append('#');
	}
	
	public TranscriptBuilder preamble(final String text) {
		return prompt(text).eol();
	}
	
	public TranscriptBuilder prompt(final String text) {
		return print(text).eol();
	}
	
	protected TranscriptBuilder print(final String text) {
		builder.append(text);
		System.out.print(text);
		return this;
	}
	
	protected TranscriptBuilder eol() {
		builderEol();
		System.out.println();
		return this;
	}

	private void builderEol() {
		builder.append('\r');
	}
	
	public String transcript() {
		return builder.toString();
	}

	public TranscriptBuilder comment() {
		builderComment();
		builderEol();
		return this;
	}
}
